{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "438091",
    "entityType": "User",
    "nonce": "0x6a3d8d8e8a39279d225f85f1cc7182cba6f9f3e4861ae709f92faf2203bdaef3",
    "signature": "0x97663b2a43d9b53b759bcdd1b366d4a80d7e664506467ace13e7d2bfc645411f33868b3670f2b7d0494cbed101f86c3d757260922f76978893b60b95bf6f05161c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}